I've been considering moving to a 12 MacBook but hearing stuff like this scares me
That occasional glorious press on "Return" key may lock it... and it feels terrible.
My first computer was the ZX 81 with its pressure-sensitive membrane keyboard. While I was tinkering around, I accidentally dropped a screw driver on the "K" key, which was now permanently depressed, and subsequently I had to lift it up a bit with a suction cup (or, well, orally) before I could type...
My first laptop was a Toshiba Satellite something or other. It was plasticky, had a shitty screen hinge, terrible battery life, poor trackpad, and eventually the video stopped working (I suspect some of the GPU's BGA pins came loose). At the time it cost ~$1000.
Even this POS laptop's keyboard didn't have "issues weekly or so". I don't understand how this is acceptable in a premium product. Remember, the keyboard is a Macbook's primary input device. This is like if the touch functionality on your smartphone started misbehaving once a week until it got "unstuck".